baber/WOPTO huggingface dataset:
Patent GB-658606-A (GB)
Title: Improvements in and relating to clips
IPC: F16B2/24
Filed: 1949-08-11
Abstract: 658,606. Folding hoods. BRIGGS MANUFACTURING CO. Aug. 11, 1949, No. 20935. Convention date, Nov. 20, 1948. [Class 108(1)]  A folding hood has a bow of upwardly facing channel section with an arcuate base 16 and undercut side walls 18 to accommodate a strip of packing material 22 which is held in place by clips 24 which engage the undercut walls 18 and are bent over the top of the strip 22. The clips 24 may be of rigid material and be inserted obliquely in the channel and then turned so that they engage the undercut side walls 18 or they may be made of spring material. When the packing strip 22 is forced into the channel the clips are prevented from moving into a position in which they are free of the side walls.
Patent GB-278486-A (GB)
Title: Improvements relating to the manufacture of gas
IPC: C10B27/06
Filed: 1926-08-25
Abstract: 278,486. Woodall-Duckham (1920), Ltd., Smith, E. W., and Finlayson, T. C. Aug. 25, 1926. Hydraulic mains.-In a gas plant comprising a number of continuously operated retorts, one or more of which may be used for the production of water gas as described in Specification 253,702, duplicated means are provided for treating with liquor the gases generated in each retort. Each off-take a discharges past duplicated liquor-sprays g, g<1> into compartments h, i, k, l formed by partitions which do not extend to the top of the main but only separate the liquor obtained from each retort. Liquor overflows m, m<1> are provided so that the correct kind of liquor may be circulated accordingly as the retort corresponding with a given compartment is operated for making water gas or straight coal gas. In Fig. 3 is shown apparatus for separate collection of the gases, the offtake a having a branch a<1> leading to a separate main c<1> and separate liquor sprays g, g<1> being provided.
Patent GB-934118-A (GB)
Title: Card flats for textile machines
IPC: D01G15/88
Filed: 1961-06-12
Abstract: 934,118. Clothing for card flats. V. VAN DEN ABEELE. June 12, 1961 [June 21, 1960], No. 21095/61. Class 120 (3). Clothing for card flats has teeth 2 formed integrally with blades having heels 3, 4, the teeth 2 being passed through a mounting-plate 5 which is not formed with slots prior to the introduction of the teeth. The mounting-plate 5 is of light weight material, such as a plastic, rubber or the like and the plate, blades and flat body 7 are held together by fastening clips 8, 9.
Patent GB-817326-A (GB)
Title: Improvements in or relating to incandescent electric lamps
IPC: H01K1/14
Filed: 1955-07-21
Abstract: 817,326. Incandescent electric lamps. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 21, 1955 [July 24, 1954], No. 21149/55. Class 39(2) In an electric incandescent lamp for a motor vehicle headlight comprising a helically wound main filament 5 arranged in a plane and in the form of a curve or V- shape, with the apex of the curve or V- shape directed towards and situated nearest to a screen 6 which partly surrounds an auxiliary filament 7, the apex of the curve of V-shape of the main filament comprises a loop 14 extending out of the plane of the main filament and secured, preferably at the apex of the loop, to a support. As shown, the main filament 5, in the form of a V, is supported at its ends by a leading-in wire 2 and a longer leading-in wire 3 which supports the screen 6, and a third wire 4 sealed into the,pinch 1 is bent around the front face 8 of the screen, clear of the latter, to support the end 7b of the auxiliary filament 7. The other end 7a of the filament 7 is attached to the rear end of the screen. The apex of the V-shaped filament 5 is looped downwardly at 14 and secured by an eyelet 15 mounted on a glass bead 16 supported by a short wire 17 upstanding from the supporting wire 4. The part of the wire 4 that is bent around the top front edge of the screen 4 is connected to the latter by an insulated strut comprising two short wires 10, 11 with an intermediate glass bead 12. Fig. 2 shows a modification wherein a downwardly directed loop 34 at the apex of a horizontal V-shaped filament 33 is connected to a wire support 29 sealed within the pinch 25 of a lamp and having no connection in the lamp circuit. The screen 30 is supported by an extension of the leading-in wire 27 of the main filament 33, and one end 31a of the auxiliary filament 31 is connected to the screen 30, the other end 31b being connected to the end 28a of a leading-in wire 28 arranged to have no contact with the screen. The loop in the main filament may be produced by supporting a continuously wound length of filament on a supporting plate provided with a slot 50, Fig, 5, across which the filament is arranged transversely, and a tool 51 is pressed downwardly on the filament to carry the central portion of it into the slot. The parts of the main filament on opposite sides loop may be wound oppositely.
Patent GB-1330768-A (GB)
Title: Extrusion head for making tubular plastics film
IPC: B29C48/10
Filed: 1971-04-19
Abstract: 1330768 Tube extrusion die WINDMOLLER & HOLSCHER 19 April 1971 [3 March 1970] 21161/71 Heading B5A In a crosshead extrusion die, from which tubular molten plastics 18, issuing from a orifice 17 defined between outer and die core parts 4, 13 is blown into a film and simultaneously internally cooled by circulated air supplied from an annular die passage 20, and discharged through a die passage 22, the molten plastics from an extruder 1 is supplied to the orifice 17 by a lateral passage 3 opening, at a junction 10, into a pair of branch passages 61, 6<SP>11</SP> which extend in opposite directions circumferentially of the extrusion direction, and then discharge respectively, via "U" and "S" bends 11<SP>1</SP>, 11<SP>11</SP> extending in the extrusion direction, in the same circumferential directions into passages 12<SP>1</SP>, 1211, around the die core 13 extending helically in the extrusion direction and which are of progressingly decreasing depth, and the side walls whereof are of progressively increasing spacing from the outer die part 4, so that the direction of flow of molten material is progressively changed from a helical to an axial direction. In the described embodiment, the passages 3, 61 and 6<SP>11</SP> are of circular section, and the junction 10 is configured as in Fig. 3, so that the boundary surface of the melt flow in the passage 3 is divided equally into the passages 6<SP>1</SP>, 6<SP>11</SP> and simultaneously rotated 20 degrees about the changed flow axis to form boundary layers extending for 220 degrees respectively around the lower and upper surfaces of the passages 6<SP>1</SP> and 6<SP>11</SP>, so that the respective "U" and "S" configuration of the bends 11<SP>1</SP> and 11<SP>11</SP> result in the divided boundary layers of the melt flow from the passage 3 each being disposed along the upper boundaries of the passages 12<SP>1</SP>, 12<SP>11</SP>, to avoid stagnation thereof which would otherwise occur along the lower boundaries of the passages 12<SP>1</SP>, 12<SP>11</SP>. The passages 12<SP>1</SP>, 12<SP>11</SP> are initially of 270 degree sector section to minimize stagnation at the junction with the outer die part 4. It is stated that the branch passages 6<SP>1</SP>, 6<SP>11</SP> may each supply more than one helical passage 12<SP>1</SP>, 12<SP>11</SP>, and that conventional means may be employed for heating the die, and for thermally insulating the passages 20, 22.
Patent GB-586077-A (GB)
Title: Improvements in method of centrifuging and centrifuge
IPC: B04B5/08
Filed: 1944-10-30
Abstract: 586,077. Bearings. BRAMLEY, A. Oct. 30, 1944, No. 21196. [Class 12 (i)] [Also in Groups II and XXVIII] The rotor 27, of an induction motor, carrying a centrifugal separator 31 is revolubly supported on a cushion of air maintained between the coned lower surface 28 of the rotor and the dished surface of a fixed ring 20. Air is introduced by a pipe 26 and nozzles 25.
Patent GB-850133-A (GB)
Title: A process for the catalytic hydrogenation of reducible sugar
Filed: 1958-07-02
Abstract: Polyhydric alcohols are obtained by the catalytic hydrogenation of a mixture of sugars, obtained by the cold hydrolysis of vegetable materials containing hemicellulose and cellulose and produced by the process claimed in Specification 827,921, in the presence of a solvent for the sugars, the hydrogenation being carried out at a temperature below the boiling point of the sugar solution and the pH of the solution being maintained substantially between 7 and 8 throughout the hydrogenation.  Alkali may be added initially to the solution to establish the required pH and further amounts may be added continually or continuously to maintain the pH at the required level.  Suitable compounds for adding to the solution are sodium hydroxide, calcium hydroxide, sodium carbonate, calcium carbonate, magnesia or trimethylamine.  It is preferred that in the mixtures of sugars used polymeric sugars should first be converted to monomeric sugars by further hydrolysis.  Preferred catalysts are metallic nickel alone or on kieselguhr.  The products are the polyhydric alcohols corresponding to the sugars present in the starting mixtures.
Patent GB-738351-A (GB)
Title: Improvements in devices for connecting together parts of containers
IPC: A47B57/58
Filed: 1953-07-31
Abstract: 738,351. Fittings for boxes. WIXLER, C. (Baldacci, A.). July 31, 1953, No. 21319/53. Class 18. A device for detachably connecting together, at right-angles to one another, two strips 1 and 2 forming for example a partition in a container, consists of a spring metal member having a vertical part 5 which bears against the face of the strip 1 and is bent over to form two cheeks 5a and 5b at right angles to the part 5. The upper end of the part 5 forms a transverse bar having tongues 6a and 6b which are bent over into a V-shape to embrace the upper edge of the strip 1, the two tongues having a space between them equal to or slightly greater than the width of a tongue, in order that two identical fixing devices may be arranged back to back, Fig. 5. Tongues 7a are cut in the cheeks 5a, 5b and bent outwardly, and in each tongue a two-pronged spike 8a is punched which is bent over towards the rear. When the strip 2 is inserted between the cheeks 5a, 5b, the spikes penetrate into the strip 1 and lock the device in position. The cheek 5b is extended upwardly as a narrow bar 9a which is bent over to hold the sheet 2. Where the sheets to be assembled are of hard material the spikes may be replaced by rubber suckers. In an alternative arrangement, Fig. 9, the upper ends of the parts 20a, 20b are bent over into a U-shape to embrace the upper edge of a sheet, the spikes 24a, 24b penetrating the sheet, and two cheeks 22a, 22b at right angles to the parts 20a, 20b, grip between them the second sheet.
Patent GB-614656-A (GB)
Title: Method of and tool for finishing gears
IPC: B23F21/28
Filed: 1946-07-17
Abstract: 614,656. Gear-cutting. NATIONAL BROACH & MACHINE CO. Tuly 17, 1946, No. 21345. Convention date, Aug. 6, 1945. [Class 83 (iii)] Milling-cutters.-A method of finishing the teeth 11, Fig. 1, of a roughed-out shoulder gear 2 comprises rotating the gear in mesh at crossed axes with a cylindrical gear-like cutting tool 1 having teeth 4 decreasing in chordal thickness from substantially one end to the other and in a direction away from the shoulder of the gear, the axis of the tool being perpendicular to a line perpendicular to the axis of the gear and passing through the meshing zone of the gear and tool to establish meshing contact adjacent the thicker end of the teeth of the tool, and relatively reciprocating the gears and tool generally axially of the gear to finish the gear teeth from end to end. The tool and gear are preferably rotated in one direction during their relative axial movement in one direction and their direction of rotation is reversed during their relative axial movement in the opposite direction, feeding of the tool and gear towards one another taking place at both ends of the stroke. The tool teeth are provided with grooves 6, Fig. 2, separating intermediate lands 8 having cutting edges 9. The inclination of the gear and tool axes is between three and fifteen degrees, while the decrease in chordal thickness of the tool teeth is between 0.0015 and 0.0003 inches.
Patent GB-961745-A (GB)
Title: Vented fuel element for gas-cooled nuclear reactors
IPC: G21C3/12
Filed: 1962-06-04
Abstract: 961, 745. Nuclear fuel elements. UNITED STATES ATOMIC ENERGY COMMISSION. June 4, 1962 [July 12, 1961], No. 21391/62. Heading G6C. A gas-cooled nuclear reactor comprises a graphite moderator 3 (Fig. 1) penetrated by cylindrical channels 2, fuel elements 1 formed of refractory fuel slugs 12 (e.g. UO 2 UC or UC 2 ) housed in porous graphite (or other suitable porous ceramic) capsules 7 being stacked within the channels 2. Each element 1 has a spherically-shaped lower end 9 which rests in a conical seat 10 formed at the upper end of the element immediately below, the lowermost element resting on a conical seat 11 at the centre of a support spider 5 carried by a moderator-supporting grid 6. The elements 1 are supported coaxially within the channels 2 by radially-extending fins 4. The lower end of each capsule 7 has a centrally-located port 8, as does the upper end of each capsule with the exception of the upermost. Communicating with the interiors of the capsules through a hole 13 in the support spider 5 is a tube 14 connected to the inlet of a suction pump (not shown). In operation, a coolant gas such as helium is introduced into each channel 2 at its lower end and, because of the low pressure within the capsules 7, a portion of this gas is caused to pass inwardly through the porous capsule walls and out through the tube 14. This continuous flow of gas purges the interiors of the capsules 7 of gaseous fission products. In an alternative arrangement (Fig. 2), single graphite capsules 15 are located centrally, by means of radiallyextending fins 16, within cylindrical channels 17 in a graphite moderator 18. The spherically-shaped lower end 19 of each capsule 15 is penetrated by a central hole 20 and rests on the conical seat 22 of a support spider 21, while the top end of each capsule is provided with a removable gas-tight cover 26. Central apertures 23 in the support spiders 21 are connected with a suction pump (not shown) through a tube 25. The interior of each capsule is filled with several fuel clusters 27, each consisting of a multiplicity of annular UO 2  fuel discs 28 carried by a graphite spool 29. If desired, the fuel may be coated to inhibit fission product release and thereby minimise the fission product accumulation exterior to the reactor.
Patent GB-382322-A (GB)
Title: Improvements in or relating to the purification of trinitrotoluene
IPC: C07C201/16
Filed: 1931-07-27
Abstract: Trinitrotoluene, completely or nearly free from mineral acids, is purified by treating it in the molten state at or about its solidifaction point and preferably not above 83 DEG  C., with a dilute aqueous solution of an alkali sulphite such as sodium sulphite in the presence of a weakly acidic substance or mixture of substances in quantity at least sufficient to maintain an appreciably steady hydrogen ion concentration throughout the treatment, the initial hydrogen ion concentration of the aqueous solution lying between pH 7,0 and 8,3.  Suitable weakly acidic solutions are a mixture of sodium acetate and acetic acid, sodium mono hydrogen phosphate and sodium dihydrogen phosphate, boric acid alone or where the crude trinitrotoluene contains a little residual acid boric acid mixed with sodium borate, ammonium bicarbonate or sodium bicarbonate.  In an example molten crude trinitrotoluene, previously washed with water until practically free from mineral acid, is stirred with an aqueous solution of sodium sulphite, sodium monohydrogen phosphate and sodium dihydrogen phosphate.  The mixture is allowed to settle and the separated trinitrotoluene is treated with a further amount of the aqueous solution, separated and washed.  The process may be carried out continuously.
Patent GB-1505723-A (GB)
Title: Process for recovering pure aromatic hydrocarbons
IPC: C07C67/00
Filed: 1975-05-20
Abstract: 1505723 Extractive distillation METALLGESELLSCHAFT AG 20 May 1975 [20 May 1974] 21636/75 Heading C5E A predistilled hydrocarbon feed 1 which comprises less than 60% by weight of aromatics is treated in a first extractive distillation column 4 with an extractive solvent 42 (which is fed at a rate such that the temperature of the top of the column is equivalent to a temperature of 90-110‹ C. under normal pressure) to produce an overhead 7, boiling in the range 35-100‹ C. and containing not more than 600 p.p.m. aromatics, and a sump product 11. The stream 11 is separated in a second extractive distillation column 12 operated at 0À3-0À8 kg/cm<SP>2</SP> abs. with extractive solvent 40 to produce a sump product 24 and an overhead 16, which is distilled at 17 to produce a non-aromatic raffinate 21 boiling at about 105‹ C. The sump product 24 is stripped at 26 to produce a pure aromatic hydrocarbon fraction 32 and pure solvent 34 which is recycled to the columns 4 and 12. A reformate is subjected to a preliminary distillation to recover a high-benzene cut which is treated using N-methyl pyrrolidone.
Patent GB-910088-A (GB)
Title: Improvements relating to sieving apparatus
Inventor: BENSON COLIN
IPC: B07B1/38
Filed: 1960-06-21
Abstract: 910,088. Screening apparatus. SIMON Ltd., HENRY. June 7, 1961 [June 21, 1960], No. 21676/60. Class 117. A substantially square horizontally gyrated sieve unit comprising a frame a and screen surface b is fed with material through an inlet opening c extending along one side of the frame, and the overtails pass to an outlet d1 extending along that side of the frame at right-angles to the inlet side, and is opposite to the side adjacent to the relatively faster flowing part of the material. The outlet extends from the end of the side remote from the feed end and occupies a distance in the range between one half and nine-tenths of the length of the side.
Patent GB-1121301-A (GB)
Title: Nitrogen- and fluorine-containing organophosphorus derivatives
Inventor: GREEN MICHAEL
IPC: C08G79/02
Filed: 1964-05-26
Abstract: Polymers having the repeating unit: <FORM:1121301/C3/1> or the repeating unit: -N(R)-P(CH2Rf)-where Rf is a fluorinated monovalent hydrocarbon group and R is a monovalent hydrocarbon group, are obtained by reacting a substituted phosphine of the formula Rf.CH2.P(F)NR2 with ammonia or a primary amine of the formula NH2R respectively.ALSO:Novel substituted phosphines of the formula RFCH2.P(F)NR2 where RF is a fluorinated monovalent hydrocarbon group and each R is a monovalent hydrocarbon group, may be prepared by reacting a fluorinated monovalent hydrocarbon derivative of either a primary a ,a -dihalogenomethyl phosphine of the formula RFCX2PH2 or of a primary methylphosphorous dihalide of the formula RFCH2PX2 with a secondary amine of the formula NHR2, where X is halogen of which at least one in each compound is a fluorine atom.  The reaction is suitably effected at ambient or sub-ambient temperatures in an inert solvent, e.g. ether.
Patent GB-625531-A (GB)
Title: Improvements in or relating to electromagnetic relays
IPC: H01H51/22
Filed: 1947-08-07
Abstract: 625,531. Electromagnetic switches. WESTERN ELECTRIC CO., Inc. Aug. 7, 1947, No. 21766. Convention date, July 11, 1940. [Class 38(v)] In a polarized relay having a neutral position and two circuit-closing positions corresponding to forward and reverse current in the operating coil, a permanent magnet 56 is arranged between the legs of a U-shaped magnetic yoke 47 and serves to deflect the magnetic flux from the coil 39 to one leg or the other according to the direction of the current. In the form shown in Fig. 2, flux from the upper pole 45 will thus proceed to a pole 50 or 51 and thence through a switch 40 or 41 to a lower pole 44. The switches 40 and 41 may take the form shown in Fig. 3 in which descent of the floating armature due to the flux between poles 50, 44 causes mercury to complete a circuit between leads 58, 59. Instead of the diversion of magnetic flux causing the selective actuation of two switches and two armatures, it may operate one armature only as in Fig. 5 where flux from the magnet 69 proceeding along the armature 78 passes to leg 71 or 72 of the yoke 70 according to the direction of current and so operates contacts 79, 80 or 84, 85. In a further modification, Fig. 1 (not shown) two armatures are arranged outside the legs 71, 72. Specifications 522,798 and 543,008 are referred to.
Patent GB-1346249-A (GB)
Title: High-sensitivity quantitative differential thermal analysis  apparatus
IPC: G01N25/20
Filed: 1971-04-19
Abstract: 1346249 Differential thermal analysis KOGYO GIJUTSUIN 19 April 1971 [14 Feb 1970] 21819/71 Heading G1N Apparatus for the differential thermal analysis of a sample 5 Fig. 3 in a container 2 located in a thermal barrier 4 inside a uniform temperature block, comprises a thermopile 3 measuring the temperature difference between points on the inside and outside of the thermal barrier 4.
Patent GB-1030334-A (GB)
Title: Electric lamps
IPC: B64F1/20
Filed: 1963-05-31
Abstract: 1,030,334. Illuminating devices. M. C. HARLEY. July 27, 1964 [May 31, 1963], No. 21843/63. Heading F4R. A device for illuminating large plane areas, e.g. aircraft runways and roads comprises a lamp 2 associated with a primary reflector 1 to produce a parallel beam of light and an auxiliary reflector 3 which is a part figure of revolution with its axes parallel to the axis of the primary reflector for projecting the beam in a horizontal plane over an angle not greater than 180 degrees. The auxiliary reflector may be a part cone surrounded by a cylindrical window 5. Colour filter may be moved into the path of the light beam. The reflector 3 may have apertures 8 for the passage of air for cooling the lamp.
Patent GB-1385785-A (GB)
Title: Card guide for front-feed device in accounting machine or the like
Inventor: MUSSO P
IPC: B41J11/54
Filed: 1972-05-10
Abstract: 1385785 Selective printing ING C OLIVETTI & C SpA 10 May 1972 [12 May 1971] 21925/72 Heading B6F A pair of clamping members 10, 11, Fig. 1, for holding a card 15, Figs. 1, 2, 3, or two cards side by side while being printed on in an accounting-machine between a printing head 14 and platen 13, are each adjustably mounted on a bar 12, being clamped thereto by members 52, 53, Fig. 4, pivoted at 56 and having contact surfaces 60, 61 engaging the bar and forming an obtuse angle at the pivot. On depression of the upper part of a lever 30, the clamping members are released from the bar for movement therealong. The clamping members are also attached to the bottom of the bar by fingers 62, 63, opened for complete release from the bar by fully depressing the lever 30 and pulling its top part forwards. A plate 66 is cyclically operated by an oscillating cam 94 of the machine so as to alternately grip the card during printing and release it thereafter.
Patent GB-1219008-A (GB)
Title: Gas burners for top-heated ovens
Inventor: PIERFEDRICI ODDO
IPC: F23D14/04
Filed: 1968-05-09
Abstract: 1,219,008. Gas burners. O.PIERFEDERICI. 9 May, 1968, No. 21970/68. Heading F4T. A gas burner, for a top-heated oven, comprises a tubular body (Fig. 1) having a head 1 in the form of a Venturi tube provided with radial air openings 2 for the intake of combustion air from the interior of the oven, a gas injector (Fig. 2) mounted within the tubular body and movable axially relative thereto and a sleeve 5 on the body for fixing the burner to the oven so that in use the burner flame is directed towards the floor of the oven. The sleeve 5 is movable on the body so that the extent to which the burner extends into the oven may be adjusted. The gas injector is secured to a cap 6 which may be screwed up or down to cause relative movement of the injector and the body.